baber/WOPTO huggingface dataset:
Patent DE-4036799-A1 (DE)
Title: Travelling wave tube amplifier - has additional delay section to provide correction and give linear characteristic
Inventor: MALZAHN PETER DIPL ING
IPC: H03F3/58
Filed: 1990-11-19
Abstract: A travelling wave tube amplifier has an evacuated chamber with a cathode (1) at one end and an electron receiver (5) at the other. Between the two a delay line (3) is helically wound for electron transmission. This has an input for h.f. signals (6) and amplified output (7) is generated at the other end. A further delay segment (4) provides a higher amplification that produces an output (8) that is some 6-18 dB greater than the main output non-linear components. This is added in a coupler (10) to provide a linear I/O relationship. ADVANTAGE - Provides broad band linear characteristic.
Patent DE-4039453-A1 (DE)
Title: Vehicle windscreen wiper motor - has spring between inner ring of bearing and armature shaft securing ring to absorb axial thrust
Inventor: ADE ROLF
IPC: H02K5/173
Filed: 1990-12-11
Abstract: The windscreen wiper motor comprises a housing containing an armature shaft (14) which is rotatably mounted on a bearing (25) having an inner (30) and an outer (28) ring. The armature shaft is supported by securing rings (33, 40) on the inner ring which engage in slots (31, 32) in the shaft. A spring element (42) is provided between the inner ring (30) and one of the securing rings (34) to provide a force coupling between the armature shaft and the inner ring. ADVANTAGE - Absorbs axial thrust caused by worm-drive; no need to case-harden armature shaft.
Patent DE-4040125-A1 (DE)
Inventor: SCHMIDT WALTER
IPC: B29C48/03
Filed: 1990-12-15
Abstract: The invention relates to an extruder head, comprising a feed part (3), which is fastened to the flange plate of the extruder barrel, surrounds a section of the channel carrying the extrudate to the extrusion dies and has a projection (5) in the surface of which there is formed a distributing surface for the extrudate has half of a further section of the channel, comprising an end part, which surrounds the die(s), is fastened removably to the projection (5) of the feed part (3) and comprising a central part, which is enclosed by the two other parts and forms on the side facing the projection (5) of the feed part (3) the other half of the section of the channel for extrudate distribution, the feed part bearing a further projection, serving as abutment, at the other end of the parting surface between feed part (3) and central part (10), and the central part (10) having two further parting surfaces, which run at obtuse angles to the first-mentioned parting surface and bear against the projections. It is the object of the invention to join the three parts (3,9,10) together with the necessary firmness by as few screw connections as possible and also to gain sufficient surface area for the attachment of additional parts. The invention consists in that, at both the lateral ends of the central part (10), screw bolts (26) engage through holes made in the latter approximately perpendicularly to the plane of the distributing surfaces into the projection on the feed part (3), in that, perpendicularly to the parting surface (13) between feed part (3) and central part (10), screws (12) in the central section connect these parts to each other, in that the end part (9) is fastened by a series of screws (11) to the central part (10) and by a further series of screws (8) to the projection (5), and in that a removable bar (16), on which the central part bears, is fastened to the abutment. <IMAGE>
Patent DE-4040474-A1 (DE)
Title: Di:thio:phosphoric acid ester(s) for removing heavy metals - are prepd. from 9-18C branched alk(en)yl ethoxy alcohol(s) to decrease metal complex solubility and increase flotation
Inventor: EDELMANN GERHARD DR
IPC: C07F9/165
Filed: 1990-12-18
Abstract: Novel dithiophosphoric acid esters of formula (I) are claimed as is also pptn. and flotation of heavy metals from mineral acids by use of (R-(OC2H4)x-O)2PS2M (I) where R = branched 9-18C alk(en)yl; M = H, Na, K or ammonium; and x = 0-6, pref. 0-4. USE/ADVANTAGE - (I) can be used to remove Zn, Cd, Hg, Cu, Ni or As esp. from crude phosphoric acid (e.g, as obtd. in wet processing to give crude phosphates) or from H2SO4 (e.g, dil. waste acid from Pb batteries). Not only does the use of higher isomers of the alcohols as ester-forming components more strongly reduce the solubility of the heavy metals complexes as compared to that attained using the `Cd-collector' dithiophosphoric acid esters of US 4634580, but the flotation of the complexes is also increased. Also, the flotation is increased with increasing distancing of the C side chain of the alcohol from the ester band (i.e. with terminal branching). Use of (I) can reduce the amt. of heavy metals in mineral acids by over 95%.
Patent DE-4041534-A1 (DE)
Title: Low abrasion asbestos and glass fibre free unsatd. polyester compsn. - contg. synthetic pref. PAN fibres and useful in high voltage insulation or parts for ignition systems, e.g. spark plugs
Inventor: BAUN WERNER
IPC: C08L67/06
Filed: 1990-12-22
Abstract: The characteristic feature of low abrasion asbestos- and glassfibre-free, flowable, unsatd. polyester moulding compsns. is the presence of synthetic fibres of length below 1.5mm, pref. polyacrylonitrile fibres of length 0.1-0.8mm and titre 1-5 dtex in an amt. of 2-10 (pref. 3-8)wt.%. USE/ADVANTAGE - The use is claimed of the compsns. for prodn. of high voltage insulation mouldings or for the prodn. of parts for ignition systems, pref. ignition distributor-caps or -rotors, rotation limiters, spark plug caps or ignition coil parts. The compsns. can be conventionally (injection) moulded to low shrinkage parts which combine good mechanical and electrical insulation properties and which are as abrasion-resistant as glassfibre-contg. parts when in contact with moving (metal)
Patent DE-4100064-A1 (DE)
Title: Elimination of reset wind-up effect in digitally regulated systems - is provided by processing units setting input command limits
Inventor: BAUER FRANZ DR ING
IPC: G05B5/01
Filed: 1991-01-03
Abstract: A process (2) regulating control system is operated with a digital linear regulator (4) contained in a loop with a comparator (6) and an input command limiting stage (8). The limits are determined by a processing unit (10) that receives limit values as inputs (Umax,Umin). The reset-windup effect is avoided by the processing unit determining limits that are based upon weighting factors. These are used in an algorithm that relates to a digital linear regulating action. ADVANTAGE - Eliminates reset-windup effect.
Patent DE-4110203-A1 (DE)
Title: Centrifugal force compensation for variable profile vehicle tyres - by inward force from pre-tensioned hoop cords or controlled fluid pressure on, e.g. metal friction studs and carrier
Inventor: LIEBIG WILLI
IPC: B60C11/16
Filed: 1991-03-28
Abstract: Method of reducing the influence of centrifugal force on the tread profile of vehicle tyres is effected by applying pre-tensioned circumferential reinforcing cords (31) over the tread parts subject to centrifugal force, e.g., (metal) bands (16) carrying gripping spikes (15), or by fluid pressure (18) within flexible elastic members (1,3) between circumferential reinforcement (31') and the tread parts (16). USE/ADVANTAGE - Vehicle tyres, esp. all-weather variable-profile tyres. Renders the tyre profile largely independent of centrifugal forces on dense (metal) tread parts, i.e., independent of vehicle speed. Reduces the tendency of friction-enhancing spikes to protrude from the tread at high speed.
Patent DE-4110463-A1 (DE)
Title: Attachment of dental articulator to its support plate - is achieved by means of bush of flexible material which subsequently hardens
Inventor: ZEISER MANFRED P DR
IPC: A61C11/08
Filed: 1991-03-30
Abstract: A dental articulator, which is used in the production of a dental prosthesis, consists of a model support plate (5) to which the articulator arm (1) is attached by means of a bush (2). The bush (2) has a central bore which is fitted with a plug (4). This plug is made of a material which is initially flexible but which subsequently hardens. A screw (3) with a hexagon recess (8) in its upper end, fastens the plug (4) and the screwed bush (2) together with the articulator arm to the model support plate. This method of attachment ensures that the articulator arm is always replaced in its exact position. USE/ADVANTAGE - Dental articulator which is fitted to its support plate in its exact position.
Patent DE-4110996-A1 (DE)
Inventor: HILMER JENS DIPL ING
IPC: B65G53/56
Filed: 1991-04-05
Abstract: A pipe switch has a valve body (2) which has at least two channels (3) and is displaceable inside a casing (1) provided with at least three connection flanges (4). The casing (1) is gas-tight. A free gas chamber (12) is provided between the valve body (2) and casing (1), inside which gas chamber (12) the valve body (2), with the exception of the front surfaces assigned to the end surfaces (8) of the channels (3) is guided so as not to come into contact with the inside surfaces of the casing. A sealing arrangement which can also be used for single and/or multi-channel rotation switches has a sealing plate (7) inside the casing (1), in which sealing plate (7) at least one continuous opening corresponding to the channel end surfaces (8) is provided. The sealing plate (7) is pressed against the channel end surface(s) (8) with a force acting vertically, in the direction of adjustment. 
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Patent DE-4111676-A1 (DE)
Inventor: SCHILLING HERBERT
IPC: B22D19/00
Filed: 1991-04-10
Abstract: In engine parts made of aluminium alloy, components such as the cylinder-head valve-seat rings which are made of high-strength materials must be held rigidly in place. Machining them is long. The invention proposes a process for casting an aluminium-alloy engine part using a casting mould made up of one ore more parts. In this process, the components, in particular the valve-seat rings, which have to be rigidly joined to the engine part, and which are made of a different material, whose melting point is at least as high as that of the engine material, are introduced into the mould, before the mould is assembled, at points indicated by suitable marks, the mould assembled, and the motor part itself then cast.
Patent DE-4114594-A1 (DE)
Title: Stocking tights
IPC: A41B11/14
Filed: 1991-05-03
Abstract: The stocking tights, esp. of a fine denier, have thereinforced knitting (4) of the trunk section (3) at both legs (1)extending below the cut (11-4,24) at the boundary (23) of thegusset. It runs from the centre (9) of the trunks knit (4)diagonally upwards until it reaches the angled lines (12,13,124)of the cut. The seam is stitched through forwards from the leftand back from the right. Pref. the diagonal seam (11) extendsfrom the centre of a lockstitch (15) at the knitted (4) trunks atthe boundary (23) of the gusset. The diagonal (11) of the seam isat an angle of about 80 deg. to the vertical (10). The extensionof the knitted (4) trunks is formed with the stitched gusset asthe gusset extension (23) of the leg (1), to form the generallyU-shaped lower part of the centre section of the pants half ofthe tights.
Patent DE-4114956-A1 (DE)
Inventor: VOLK HARALD DR
IPC: C11D3/22
Filed: 1991-05-02
Abstract: An environmentally friendly, granular, phosphate-free dishwashing agent for automatic dishwashers is proposed with alkali metal gluconate as phosphate substitute. It contains:   10 - 70% by weight of water-soluble alkali metal silicate with a ratio of silicon dioxide to alkali metal oxide greater than 1:1;   0 - 50% by weight of alkali metal carbonate; 2 - 15% by weight of polymeric sequestrants or dispersants, preferably of the polycarboxylate type, especially homopolymers of acrylic acid or copolymers with other organic acids or ethers which contain vinyl groups, especially maleic acid; 3 - 15% by weight of alkali metal salts of acids obtained from sugars by fermentation, especially of Glu acid or lactobionic acid; 2 - 15% by weight of an oxygen-based bleach from the group of peroxo compounds or peroxohydrates or mixtures thereof, which liberate hydrogen peroxide in water; 0 - 15% by weight of a bleach activator from the group of compounds which liberate reactive peracids, especially peracetic acid, on exposure to hydrogen peroxide; 0 - 2% by weight of an alkali metal salt of a phosphonic acid to stabilise the bleach during storage; 0 - 5% by weight of enzymes or enzyme mixtures from the group of hydrolases, especially proteases, amylases and lipases;   0.5 - 5% by weight of a low-foam nonionic surfactant. d
Patent DE-4116907-A1 (DE)
Inventor: VANDAMME DETLEF DIPL ING
IPC: F16B21/18
Filed: 1991-05-21
Abstract: 2.1. A coupling device for a shank (3) on the periphery of a rotating body (1) is to be provided which combines a stable power train with easy rotatability of the shank (3) when the rotating body (1) is at rest 2.2. This is achieved according to the invention in that the shank (3) has a circumferential inner groove (6) and the recess (2) has a circumferential outer groove (5) and that a radially resilient locking washer (7) is provided which, for the purpose of introducing the shank (3) into the recess (2), can be resiliently pushed into at least one of the grooves and which, in the inserted state of the shank (3), is received by the grooves which essentially align with one another. 2.3. The invention can be used in particular in the case of fan blades for axial fans. <IMAGE>
Patent DE-4123333-A1 (DE)
Inventor: BOECKER MONIKA DR
IPC: C11D3/39
Filed: 1991-07-15
Abstract: The multi-component washing-agent system disclosed comprises at least one liquid cleaning component and one liquid bleaching component. The bleaching component consists of a homogeneous liquid containing oxygen-releasing compounds, plus another homogeneous liquid component containing a bleach activator. This two-element bleaching component has good storage stability.
Patent DE-4124969-A1 (DE)
Title: Lorry for container transport system - has laterally extensible container lift columns movable into hoisting and lowering positions defined by stops.
Inventor: PAUL JOSEF
IPC: B60P1/64
Filed: 1991-07-27
Abstract: the lift columns (5, 6) are transversely movable such that they can be displaced outwards from a transport position,aligned with the sides of the container,into a raising and lowering position in which one container (4) is movable along the length of the vehicle In the transport position the columns are arranged behind the container and the grippers means on the posts incorporate extensible carrier arms (11). USE/ADVANTAGE - For lorry for rapid container handling,with simple design,preventing the hoist gear to obstruct transport.
Patent DE-4125814-A1 (DE)
Title: Biodegradation of lignin-contg. plastics and polymers - by crushing polymer, inoculating with white and/or brown mould and culturing
IPC: C12P1/02
Filed: 1991-08-01
Abstract: Biological degradation of lignin-contg. polymers (I) is by pulverising the polymers, inoculating with white and/or brown mould and culturing. Co-substrate for the mould is added, (pref. a nitrogen-deficient medium; the culture time is at least 1-10 days. USE/ADVANTAGE - Enables the biodegradation of lignin-contg. plastics and polymers, e.g, polymers, polymer blends, copolymers and graft copolymers of lignin with polyalkenes, PVC, chlorosulphonated polyethylene, PVAC, polyacrylate, PAN, polyamide, polyester, polyurethane, rubber etc., contg. lignin or derivatised lignin with mol. wt. 1000-10,000 (as obtd. in pulp and paper prodn.). In an example, a N-deficient medium contg. glucose, 13 different inorganic salts, thiamine, dimethyl succinate and L-asparagine was adjusted to pH 4.5 and mixed with 2 wt. % agar; 2ml medium was placed on a slide and sprinkled with 10mg of a graft copolymer of 50 wt. % lignin and 50 wt. % polystyrene, then the slides were placed in a petri dish contg. strips of filter paper soaked with sterile water, and each slide was infected with a 0.3 x 0.3mm piece of inoculum prepd. by culturing the selected mould on wet straw for 2 weeks; the petri dishes were sealed with paraffin and incubated for 72 days (with aeration after 5 weeks), after which the sample was dispersed in dioxan/ethanol/CH2Cl2 and the wt. loss was measured by UV spectroscopic multicomponent analysis. With T. versicolor as the mould, the amt. of degradation was almost 80% for the lignin component and 50% for the polystyrene component
Patent DE-4127470-A1 (DE)
Title: Load transporter arrangement for bicycle - consists of box with forked drawbar, having three pivot joints, for use as trailer or saddle bag
Inventor: JESCHKE SIEGFRIED
IPC: B62K27/00
Filed: 1991-08-20
Abstract: The load transporter consists of a box (10), with wheels (12), and a forked drawbar (16), to fasten it to the bicycle near the rear wheel (14). A first joint (18) with horizontal pivot axis on the bicycle-sided end of the drawbar, permits its movement relative to the bicycle, parallel to the rear wheel plane. A second similar joint (20) on the box-sided end of the drawbar, permits a pivot movement of the box, relative to the drawbar, parallel to the rear wheel plane. A stop on the first joint, limits drawbar movement in a direction to the road surface. A stop on the second joint, limits the movement in a direction away from it. USE/ADVANTAGE - Load transporter for bicycle is easy to handle, even when used with light loads.
Patent DE-4128583-A1 (DE)
Title: HEX-dump character control appts. for printer output - generates different character pattern for predefined special code enabling detection of code dump-list
Inventor: SUGINO KOICHI
IPC: B41J2/485
Filed: 1991-08-28
Abstract: The appts. includes a code output device (1) for character codes representing alphanumeric characters and special characters from a character store, and for special codes. A print controller (6) controls printing of the character pattern generated by a character pattern generator (5). The generator produces a character pattern for at least one predefined special code which is different from the patterns generated for the other special codes.
Patent DE-4129914-A1 (DE)
Title: Drumstick bone removal - using press cylinder to push bone against cutting tube, to separate meat form bone simply and safely
Inventor: HUBER GUENTHER
IPC: A22C17/04
Filed: 1991-09-09
Abstract: To remove the bones from meat, e.g. from turkey drumsticks etc., the meat is moved in the direction of the bone to be removed and the end of the bone with the least meat at it is firmly supported at the meat round the bone. A sliding force is applied at the end of the bone with the most meat, to force the bone at the central unsupported zone at the other end. As force is applied, a relative movement is pref. exerted between the bone and the meat, for the meat to be detached and cut clear in the bone direction, using a cutting tube with a thick wall, to take the meat in a radially expanding path. Appts. has a fixed tube and an axially aligned pressure cylinder. The clear width of the tube over the max. dia. of the bone has a ring-shaped limit surface at the end towards the press cylinder for the meat. The plunger at the press cylinder is axially aligned with the tube and at a gap from it at least by the length of the meat portion. The dia. of the plunger is smaller than the clear width of the tube. The end of the tube with the limit surface is fitted with a mouthpiece at the working end to give different clear widths and/or outer dia., as a screw attachment. ADVANTAGE - Gives simple sepn. of the meat from the bone, without requiring specialist operation using an appts. which is safe to handle.
Patent DE-4134903-A1 (DE)
Title: Flat waggons for combined goods traffic - has carrier for semi-trailers, mounted on two bogies, carrier is removed from one bogie, and carrier end is lowered, for trailer
Inventor: LIEHMANN GERHARD
IPC: B61F1/00
Filed: 1991-10-19
Abstract: The flat waggons are for use with railway vehicles. They are for the transportation of semi-trailers. The waggon consists of several sections, esp. bogies and dismountable carriers. A carrier (5) may be removed from at least one of the two bogies (2), on which it is carried. The end removed from the bogie may be lowered. It has a narrow side (14), and a semi-trailer (6) may move over this side, when the end is lowered. The carrier may be lifted by the semi-trailer, which is moved into the space between the side bars (3) of the carriers. ADVANTAGE - Simple transportation of trailers by rail.
Patent DE-4138716-A1 (DE)
Title: Transportable concrete mixer with integrated batching - ingredients carried separately and cement stored at selected temperature, materials mixed when required in thermally isolated reaction chamber
Inventor: SUESSE HARALD DIPL ING
IPC: B28C7/04
Filed: 1991-11-21
Abstract: During transport, the aggregates of the concrete are carried on the main rotating chamber (2), the cement in the reaction chamber (4) and the water is stored in a separate chamber (2.1). The temperature of the mix is determined by blowing air through the gap between the rotating chamber and an outer container (1). The dosing of cement or other hygroscopic ingredients is achieved through thermally isolated reaction chambers. The aggregates are allowed into the reaction chamber through a fill opening (5.1). USE/ADVANTAGE - Ensures concrete deliveries is at optimum mix.
Patent DE-4205275-A1 (DE)
Title: Machine for laying cloth onto cutting table - has three=phase drive motors for moving machine along cutting table and for other functions, with frequency inverter drive.
Inventor: WIENEN WALTER
IPC: B65H45/103
Filed: 1992-02-21
Abstract: The layers (18) of cloth are laid onto the cutting table by a machine carrying the roll of material (40) and with a controlled feed onto the layers. The different functions of the machine are driven by three phase motors (52,56,66) with a single frequency inverter (76) to power the control unit (70). The frequency inverter prepares a three phase supply independent of the main supply. The machine is moved by drive motors and has separate motors to control the laying height (52) as well as the lateral alignment (56). The three phase motors are compact and can be controlled with precision. The cutter (64) is likewise powered by a separate three phase motor (66). ADVANTAGE - Accurate laying action irrespective of quality of power supply, compact drive motors, accurate laying control.
Patent DE-4213724-A1 (DE)
Title: Coupling device for attachment of snow plough to vehicle - uses hydraulically operated locking bolts with tapered engagement ends
Inventor: MEISNER WOLFGANG DIPL ING
IPC: B62D49/06
Filed: 1992-04-25
Abstract: Coupling device for the attachment of equipment to the front of a vehicle in which the coupling component and the counter piece are tightened transversely to the suspension plane by hydraulically operated locking bolts (10). The locking bolts have tightening shanks (19) with profiled, inclined surfaces (14) for the engagement of inclined counter engagement surfaces (18) of supports (17) held in guides (15). USE/ADVANTAGE - Allows the attachment of a snow plough to a goods vehicle to give a wear-free connection during prolonged use.
Patent DE-4216380-A1 (DE)
Inventor: MENKE RONALD
IPC: C09K23/56
Filed: 1992-05-18
Abstract: Process for cleaning bathroom fittings and other solid surfaces with cleaning foam, characterised in that the foam is generated from an aqueous liquid which contains as essential surfactant an alkyl polyglycoside of the formula I  R-O(-G)n      (I> in which     R is a long-chain alkyl radical with 8 to 22 C atoms,   G is a glycosidically linked radical of a monosaccharide and n is a value between 1 and 10.